Thunderbird Community Forum

Hello everyone,

First of all I would like to say that I love Thunderbird! I am also not very IT literate when it comes to manipulating software or using the correct language so please bear with me, I find these a bit overwhelming.

I was hoping someone could help me with with my calendar, I have tried to change settings on other software and it went terribly wrong and I don't want a repeat. I have read the various help files but it doesn't make much sense to me :(

I have a domain with Dynadot for my website and email, it's basic but does the job for my small business. It has IMAP abilities and an autoreply but that's about it- there's no calendar app but does have an email app... just. On my Windows laptop I use Thunderbird for all emails and calendar requirements which is great when I'm using my laptop. However, I do meet with participants and don't always use my laptop so I need a way to be able to view and book appointments using my andriod phone.

I also have a member of staff who needs access to my calendar and be able to book appointments for me and vice versa. As we are both out and about a lot the calendars need to be "live" and easy to reach, much like the paid for Outlook shared calendar.

At the moment my member of staff doesn't use Thunderbird as their main software, they have Outlook. We did try another email/calendar app but their shared calendars were just links that we had to save and keep logging into, it was a nightmare and without the updating we had some double-bookings. I don't want to go through that again, it was embarassing.

I would greatly appreiciate your wisdom in how I can resolve my issue and easy step by step guidance on how to do it properly. I am the type of person who will get locked out of everything!

Best wishes Rebecca

Please Someone help ?

I have followed all the suggestions I can find, but my Thunderbird Calendar will not sync with the Outlook Calendar on Windows 11. I am using TB Sync, but every time I try to add my Outlook Calendar ? It refuses to accept my Password, even though it is correct, and the User name and email are too ! It shows as error code 401, and cannot authenticate ?

I have tried a suggestion to create an 'App Password' to use in my Microsoft account, but the options described do not exist in my account !

Can anyone please help ?

I have a Google Calendar, in which I manage My Tasks. I can't see my existing tasks in Thunderbird, and I can't add new tasks to the Google Calendar. New Task in Thunderbird is greyed out and the field next to it has the writing: "Please select a calendar that supports tasks".

I have seen that many had the same issue and understood that it is linked to how My Tasks in Google Calendar itself works. Is there really no workaround whatsoever?

If not, how can I manage tasks and share them with someone else (who uses Google Calendar or Apple Calendar, but does not use Thunderbird)?

Thanks in advance for your replies!

I'm using an old, no longer supported add-on called Reminderfox that saves its contents in ics format. I used to be able to import this to Google calendar and Thunderbird but for some reason they and also Microsoft Outlook won't now import the ics file. They either give an error as in Thunderbird's case (error, no items to import) or just remain greyed out so I can't do anything else as in Google and Microsoft's case. I have submitted the ics file to an ics verifier online and it says there are no errors. I have also looked at the file in notepad and can't see any obvious errors, although I'm not fully conversant with the ics format. Can anyone suggest what the problem might be or anything else I can try please?

Hello and THANK YOU for Thunderbird and I am looking so forward to getting off Outlook! I am about 4/5 way through setting it up on my desktop.

I currently keep my calendar on Outlook. I have been able to import my folders, contacts and mail, but when I go to import the Calendar, the box on import cannot be selected. Is there something else that I need to do to bring over my calendar? Did I miss step when I did the initial set up?

I FOUND no close TOPIC.

Google calendar allows color-coding of events - but the display is highly inadequate. T-bird 128 calendar apparently HAS no option to color events. But events are FAR easier to see WHEN color-highlighted. Would this be a difficult option??

Like the subject says 'updated from 115 to 128.1.1esr and now (icloud) calendars wont sync'

I understand tb doesnt need tbsync anymore, do i remove these? When i try and enable the calendar function, a 'authentication required' windows opens up with username and password. But fails when the correct information is entered. I read where you can go to google, which i did, and get the required information, but that fails also.

How can I sync the new 128.1.1esr with my icloud calendars?

Thanks!

Hello, I want to change first day of the week to Monday (who on earth would have Sunday as the fist work day??) Problem: All instructions online are useless since there is no "Options" / no "Preferences" / in Settings there is no "Calendar" or anything referring to Calendar. Under Settings there is only General, Composition, Privacy & Security, Chat and Export for Mobile. Nothing for Calendar. Also in Calendar view ... nothing to change days order. All online articles seem to be outdated (2021 and older)and don't apply anymore. Someone advised the reboot Thunderbird ... ? How to do that? Just close it down at the X?

Please help.

Thanks

I am using Thunderbird Supernova and am pretty happy with it. However, I cannot figure out how to specify a different time zone than the system timezone when creating an event. For example, if I just bought a flight that departs at 4PM London time and I am in Miami when creating the event, how can I create this event without having to convert that time to my current time?

Surely this is possible but I can't figure out how. Thanks for any help!

For years I have used the extension 'Calendar Tweaks' because it colorizes the entire event in the calendar. This extension is no longer compatible with versions of Thunderbird after 74 so I have stop updation after Version 69. However in resolving problems with authorization I needed to update to the current Version of Thunderbird so my events in the calendar now just show the category color at the edge of the box instead of the entire box. Is there a way in Thunderbird to colorize the entire event box or another extension that does this.

My Thunderbird profile is on a separate drive.

I had to reformat my computer. No problem with managing profile and all emails and folders, etc are ok. However, my calendar is blank!

Is the calendar not stored in your profile? Have I really lost all my dates and appointments?

I'm getting duplicates of calendar items using the Provider for Google Calendar whenever I enter an event in Thunderbird. This doesn't happen when the events are posted elsewhere, on a Google Calendar. When I'm about to enter a new event, I can see a line labeled "Calendar" that gives me 3 choices ... 2 of them are the same, like xxxxx@gmail.com and the other is GMAIL. I have 2 gmail accounts sharing on three devices ... my laptop, my phone and my wife's iPad. Once I've finished and closed the event, I wait a bit and I get the duplicated item beside it. When I right-click on an event that I've put into Thunderbird, I see a line that says "Organizer:" with my gmail address. I don't see anything like that when clicking on a duplicate that has popped up. There is also a Related Link ... https://calendar.google.com/calendar/u/0/event?eid=X2M5ajYyZTluNnRpajBiOWo2OWg2YWI5a2NkaGphYmIyYzhzNjRiOW02cGozaW9wcGNkaW04b2hnY2tfMjAyNDAxMTFUMTgzMDAwWiBnaGNoYXJ0ZXJzQG0 ... but it comes up as "requested URL not found on this server". I hope I've provided enough information here to get this situation resolved. Any help would be greatly appreciated. Thanks, Gil

Hi everyone.

Hoping someone may be able to help. I see that other users are able to fully highlight the events in calendar. I seem to be only able to highlight 2/3's (see image)

Thanks in advance

I was browsing this page: https://support.mozilla.org/en-US/kb/adding-a-holiday-calendar

Which says:

• Select "On the Network", and click "Next".
• From the Format list, select iCalendar (ICS).

But when I select "On the Network" I see no options for file format (TB 138).

Is subscribing to remote ics files still supported, or must we download the files locally and subscribe to them there?

I'm just starting to use Calendar in the latest version of TB. I see that you can add little category color bars to each event. I tried to add a new category, but it disappeared from the dropdown menu as soon as I added it and a color bar never appeared in the event on the calendar display. How can I add and subtract categories? Can I change the colors assigned to categories?

I have one question and a suggestion.

My question is why doesn't the alarm I set in Lightning work unless Thunderbird is open?

My suggestion is a calendar for Windows and an identical calendar for Android that sync so that I can avoid telling Google all about my life. I've worked hard to avoid Google. I use Firefox as my browser. I use DuckDuckGo as my search engine. I don't use a GMail address. I use Thunderbird to send my messages from my PC. I use an alternative navigation program on my phone and I turn off my GPS when I'm not using it. I use Dragon to talk to my phone when I'm driving instead of using Google Assistant. I use simple calendar, simple file and simple gallery instead of the Google alternatives. And I "sync" my calendars by entering the same information manually into the calendar on my phone and the calendar on my PC (Efficient Calendar Free).

But, boy, it would be sweet if I could find a non-Google calendar program that would sync across my devices. That would really be sweet.

Keep up the great work. You're not only making good products, you're protecting what little is left of our privacy, and I, for one, appreciate that.

I believe I have noticed a change in the operation of Calendar Event notifications, following recent updates to Thunderbird, in the past week or more. I am currently on release 137.0.2 (64-bit) running on a Linux Desktop. This computer gets shut down every night, and rebooted the following morning. When a calendar reminder has been snoozed, and the snooze time expires when the computer is not running, and Thunderbird is not running, those calendar reminders used to show up the next time Thunderbird was started after the computer was rebooted, even if the calendar event time had already passed. In the last week or so, following recent updates, I believe this is no longer happening.

Also, I believe that calendar events that have reminders set, that have not been snoozed, whose reminder time happens when the computer is shut down, are also not being shown reminders the next time the computer is started, if the reminder time happened when Thunderbird was not running. This is also a change from the way it used to work. For example, if an event is marked as starting at 10:00 AM, with a reminder set for 2 hours before (which would be 8 AM), and the computer is booted and Thunderbird is started at 8:30 AM, that reminder no longer happens. That is a change from the way it used to work. A few weeks ago, in that scenario, the reminder would have been shown the next time Thunderbird started up.